Centrifugal cream-separator.



H. TDT.

v GENTRIFUGAL GBEAM SEPARATOR.

APPLIOATION I'ILD JULY 2, 1913.

1,087,851 Patented Feb. 17, 1914.

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UNITED STATES PATEN T OFFICE.

HEINRICH TIDT, OF LENSAHN, GERMANY.

CENTRIFUGAL CREAM-SEPARATOR.

To aZZ w/om it may camera:

Be it known that I, HEINRICH TDT, citizen of the German Empire, residing at Lensahn, in the Province of Schleswig- Holstein and Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Centrifugal Cream-Separators; and I do hereby declare the following' to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being' had to the accompanying' drawings, and to letters or figures of reference marked thereon, which form a. part of this specification.

n Vertical centrifugal cream separators the milk serum or skimmed milk is forced toward the outer wall of the separator drum by centrifugal force, while the fatty constituents are collected at the center where they form a cylinder of cream. lVith a continuous supply of milk to the Separator, the milk serum is forced out continuously through a number of tubes mounted in the drum-neck and through the head ofthe drum into a collector for the skimmed milk. In consequence of the high speed of the drum the skimmed milk, as soon as it leaves the drum, is broken up into very small particles, so that the milk is completely converted into a mist or cloud. The skimmed milk, reaching' the co-llector in this broken up condition, absorbs a very large quantity of air, thus producing` a very considerable amount of frot-h. This froth is very inconvenient in dairies, and is especially undesira-ble when the skimmed milk is to be used for cheese making, as it collects numerous baoteria which are eventually found in the cheese.

The purpose of this invention is to prevent the format-ion of froth. This can only be at-tained by preventing' the skimmed milk from breaking up when it lea-ves the drum. According' to this invention a disk is fixed, for this purpose, upon the drum of a Vertical cream separator, the said disk being' provided with passag'es which form continuations of the tubes for the outfiow of the skimmed milk and conduct the latter into a recess in the disk from which the milk is removd by a skimming tube hereinafter described, attached to the outer cover of the ,separator or to any other suitable part of the frame-work of the Separator.

In the accompanying drawlng' 1s shown a Specification of Letters Patent.

Application filed July 2, 1913.

Patented Feb. 17, 1914. serial No. 777,108.

centrifugal cream separator provided wi th the improvement.

Figure 1 is a Vertical section of the separator drum, and Fig. 2 is a plan of the disk, indicating' the passag'es and reccss, mounted on the drum or on the hood of the latter.

In the drawing', a is the drum, a' its hood and Z) the outer cover. The hood a' receives the tubes c which conduct the skimmed milk from the periphery of the drum a along the hood a' and through its neck. Above t-he ends of these tubes o and below the outlet apertures for the cream, a disk cl is fixed to the hood of the drum, which disk is provded with passag'es c and also with a circumferential recess The skimmed milk is conducted by the passag'es c, by reason of the centrifugal force, into the recess f, where it forms a homogeneous mass rotating' with the disk. A scoop-like tube g reaching' into the rece-ss f is adapted to withdraw the skimmed milk from the latter. In this tube g, which is fixed to the outer cover b or to any other suitable part of the frame-work, is mounted a non-return valve h, so that when only a. small quantity of milk is being' supplied noair can enter the skimming tube g.

The improvement illustrated and described is applicable toall kinds of Vertical cream separators.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A cream Separator comprising a receptacle, a circular disk mounted on the upper end of the Separator, said disk having' an overhanging inwardly' turned fiang'e to form an annular channel, a plurality of radial passages on the underside of the disk, a plurality of tubes on the interio'r of the receptacle which communicate with the radial passag'es, and a stationary pipe having a fiared mouth whichl snug'ly fits in the channel to receive the milk and convey same from said channel.

2. A cream separator comprising' a receptacle, a circular disk mounted on the upper end of the Separator, said disk havingT an overhang'ing inwardly turned flang'e to form an annular channel, a plurality of radial passages on the underside of the disk, a plurality of tubes on the interiorof the receptacle which communicate with the radial passaaes, and a stationary pipe having a flared month which snug'ly fits in the chanmouth ivhich snugly fits in the channel to receive the milk and eonvey same from said 15 channel, and an automatic check Valve in the pipe to prevent admission of air through said pipe to the channel.

In testIno-ny Whereof I have signed my name to this specification in the presence of 20 two subscribing Wit-neses.

HEINRIGH TDT.

vWitneeses FR. JULIUS PoTHs, ERNEST H. L. MUMMENHOFF.

Goplel of thll patent my be obtained for vc cents each, by addreung the Commiuioner o! Patents.

l Washington. D. 0. 

